and a cooling tuneup on two out of the four systems in the home. On the Lennox air handler it was pulling a six Delta. Also, the drip pan is leaking and has a hole. I gave the homeowner a warning that this is of immediate concern and he let me know that he was going to contact the people who installed it to have it fixed. On the second system (Rheem) Nothing was out of the ordinary. The outdoor units all the electronic components were intolerance. on the Lennox I measured very low pressure and low refrigerant. I let the customer know we could do a leak search, but he insisted that he would go with the company that installed the equipment. Suggested hard start kits and they were declined. Also suggested a new disconnect as the one he has was starting to melt away the plastic.